The main objective of this project was to confirm the high potential of Natural Gas as fuel for downsizing turbocharged engines. For this purpose, a demonstrator vehicle has been developed when modifying a Smart gasoline vehicle. The target was to achieve low CO2 emissions with a maximum level of 100 g/km on a European Driving Cycle (NEDC), while keeping pollutant emissions below the EURO IV level. At full load conditions, thermal efficiency is 25% higher than for gasoline. That represents a CO2 gain of 35%.After a brief description of the main Natural Gas characteristics as a transportation fuel, the downsizing approach will be described as a most promising way to reduce engine specific fuel consumption. Results obtained on bench and with the Natural Gas Smart vehicle will be presented focusing the CO2, regulated emissions, drive-ability and driving range in accordance with “urban” expectations.


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    Title :

    Natural Gas - an environmentally friendly fuel for urban vehicles: the SMART demonstrator approach


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    2005 SAE Brasil Fuels & Lubricants Meeting ; 2005



    Publication date :

    2005-05-11




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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